TM 9-1765B Ordnance Maintenance: Engine, Power Train, Braking and Steering Systems for Bomb Service Truck M6 (Chevrolet) 1943-02-25
"This manual is published for the information of ordnance maintenance personnel. It contains detailed instructions for inspection, disassembly, assembly, maintenance, and repair of Bomb Service Truck M6 (Chevrolet), supplementary to those in the field and technical manuals prepared for the using arms. Additional descriptive matter and illustrations are included to aid in providing a complete working knowledge of the materiel."
Digitized by AHEC (U.S. Army Heritage Collections)
http://www.carlisle.army.mil/ahec/